Absolutely Significant绝对显着
April 18th, 2007 · by David Bradley 07年四月十八日由戴维布拉德利
The Significant Figures site has got almost totally waylaid with computing tips and tricks for bloggers hoping to get the best out of their software or fix stuff when it goes wrong.该网站的重要人物得到几乎完全waylaid与计算技巧和窍门的博客希望能得到最好的软件或修复的东西时,不用是错误的。 It’s almost like we’ve abandoned our diehard MoanWare and sigfig fans, so here’sa quickie numerical post inspired by a query over on这几乎就像我们已经放弃了我们的死硬分子MoanWare和sigfig球迷,所以下面的数值后quickie灵感查询比对 The Straight Dope直涂料 . 。 It is not exactly chat up line material, but you never know.这是不完全的聊天了线的材料,但你永远不知道。
Think思考 absolute zero绝对零度 , and some of us picture a chilly summer’s day in northern England, but seriously absolute zero is as cold as you can go.和我们中的一些图片寒冷夏天的一天在英格兰北部,但认真绝对零度是冷的,您可以去。 Atoms are almost at a standstill, there’s virtually no vibration, and only the minute fluctuations of原子几乎处于停滞状态,但几乎没有振动,只有分钟的波动 Heisenberg’s Uncertainty Principle海森堡的测不准原理 come into play at the theoretical limit of the Big Zero, zero Kelvin, that is.发挥作用的理论极限大零,零开尔文,这是。 While absolute zero (minus 273.15 Celsius, you will have to use our online conversion tool to get a Fahrenheit value yourself) is a theoretical limit nothing ever gets that cold, even outer space resides at a balmy fraction of a degree above 0.00000000 K. The coldest scientists have ever taken a material is within a few billionths of a degree above the absolute.虽然绝对零度(零下273.15摄氏度,你将不得不使用我们的在线转换工具,以获得自己的价值华氏)是一个理论极限以往任何时候都没有得到,寒冷,甚至外层空间居住在一个风和日丽的一部分一定程度以上的0.00000000光寒冷的科学家们以往任何时候都采取了物质是在一个几十亿分之一一定程度以上的绝对的。 In 1994, a NIST team cooled a material to 700 nanoKelvin, and in 2003, MIT scientists reached 450 picoKelvin (0.45 nK). 1994年, NIST的团队冷却材料700 nanoKelvin ,并于2003年,麻省理工学院的科学家达成450 picoKelvin ( 0.45 NK细胞) 。
But, what about the other end of the scale is there a super hot temperature beyond which nothing can be heated further?但是,怎样的另一端的规模有一个超热的温度以外,没有任何东西可以进一步加热? Well, according to the Straight Dope there is indeed and it is an incredibly big number - a ten followed by 32 zeros Kelvin (10^32 K).那么,根据直涂料确实存在,它是一个难以置信的大号码-1 03 20开尔文( 1 0^ 3 2金) 。 That’s greatly hotter than the center of the Sun, which merely sizzles at 15 million degrees K (15×10^6 K).这大大超过炎热的中心,太阳,这仅仅是sizzles在15亿度度( 15 × 10 ^ 6金) 。 The opposite of absolute zero is known as the与此相反的绝对零度被称为 Planck普朗克 temperature, after the “constant” scientist and is the theoretical upper limit on just how much energy a material could have.温度后, “常数” ,是科学家的理论上限多少能源材料可能。
So, what limits temperature, why can a material not be heated and heated to an infinite temperature.那么,什么温度的限制,为什么能材料不被加热,并加热到无限的温度。 Well, the simple answer is that there is just not enough energy in the universe to go above the Planck temperature, but even if there were, the vibrating particles in a substance would have to move so fast that they would outpace the speed of light, something that, in the vacuum of the spaces in between atoms, is not possible.嗯,简单的答案是,有没有足够的能量在宇宙中去普朗克以上的温度,但即使有,振动颗粒物质会移动得太快了,他们将超越光速的速度,东西,在真空的空间,原子之间,是不可能的。 But, even if they could be shaken faster than that mass increases (viz E=mc 2 ) as vibration speed rises and ultimately each shaken (but not stirred) particle would become its own black hole as its mass approached infinity, at which point the laws of physics break down and the whole conundrum would collapse in the biggest fry up you could ever imagine.但是,即使他们可以动摇快于大规模的增加(即é =上mc 2 )振动的速度上升,最终每个动摇(但不搅拌)粒子将成为自己的黑洞作为其质量接近无限大,这时物理定律打破和整个谜团将崩溃,最大的鱼苗,你无法想象。
Meanwhile, back the Big Bang, theorists have worked out that a minute fraction of time (Planck time, 0.0….1 seconds, where …. represents 41 more zeroes) after that universal event, the temperature of the universe was the Planck Temperature.同时,支持大爆炸理论已制订出一个分数分钟的时间(普朗克时间, 0.0 ... 0.1秒,在那里... 。代表41个零)后,普遍情况下,温度的宇宙是普朗克温度。 Things have been getting more and more chilled out ever since.事情已经越来越冷了至今。 Never mind global warming, we are talking universal cooling on a grand scale.别介意全球变暖,我们正在谈论普遍冷却了隆重的规模。



















1 response so far ↓一反应到目前为止↓
A kind of follow up post to this Significant Temperature item appeared recently on the Penn State press release section of their website一种后采取后续行动对这一重大项目的温度似乎最近在宾夕法尼亚州立大学的新闻稿一节他们的网站
http://www.rps.psu.edu/probing/hotcold.html
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